Promotional price valid on web orders only. Your contract pricing may differ. Interested in signing up for a dedicated account number?
Learn More

Potassium phosphate, ACS, 98.0% min

Catalog No. AA4664430
Click to view available options
Quantity:
250 g
1 kg
5 kg

CAS: 7778-53-2 | K3O4P | 212.265 g/mol

Potassium phosphate tribasic is a reagent with a very high buffering capacity. It is widely used in molecular biology, biochemistry, and chromatography, used for the extraction of keratohyalin protein from bovine tissue, to study the effects of freezing and thawing on the stability of proteins sensitive to conformational changes. It is used as a food additive for its properties as an emulsifier, foaming agent, and whipping agent.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 7778-53-2
Molecular Formula K3O4P
Molecular Weight (g/mol) 212.265
MDL Number MFCD00036295
InChI Key LWIHDJKSTIGBAC-UHFFFAOYSA-K
Synonym potassium phosphate, tripotassium phosphate, potassium phosphate tribasic, phosphoric acid, tripotassium salt, potassium orthophosphate, tripotassium orthophosphate, caswell no. 700a, potassium phosphate, tribasic, potassium phosphate k3po4, ccris 7321
PubChem CID 62657
IUPAC Name tripotassium;phosphate
SMILES [O-]P(=O)([O-])[O-].[K+].[K+].[K+]

Specifications

Melting Point 1340°C
Color White
Physical Form Granules
Quantity 250 g
Merck Index 14,7660
Solubility Information Soluble in water; Insoluble in alcohol;
Formula Weight 212.27
Percent Purity ≥98.0%
Grade ACS
Sensitivity Hygroscopic
Density 2.564 g/mL
Chemical Name or Material Potassium phosphate
Show More Show Less
Hazard Category H318-H335
Hazard Statement GHS H Statement
H315-H319
Causes skin irritation.
Causes serious eye irritation.
Precautionary Statement P261-P271-P280-P304+P340-P305+P351+P338-P310-P312-P501c
EINECSNumber 231-907-1
RTECSNumber TC8450000
TSCA Yes
Recommended Storage Ambient temperatures; Store under Nitrogen

RUO – Research Use Only

Product Content Correction

Your input is important to us. Please complete this form to provide feedback related to the content on this product.

Product Title

By clicking Submit, you acknowledge that you may be contacted by Fisher Scientific in regards to the feedback you have provided in this form. We will not share your information for any other purposes. All contact information provided shall also be maintained in accordance with our Privacy Policy.

Your feedback has been submitted: Thank you for helping us improve our website.